CHEN Kenong,ZHANG Hongzhuo,YUAN Liwei,et al.Genetic Inheritance Analysis on Melon Fruit Index in F2 Generation[J].Northern Horticulture,2016,40(19):1-4.[doi:10.11937/bfyy.201619001]
甜瓜果形指数的F2代遗传研究
- Title:
- Genetic Inheritance Analysis on Melon Fruit Index in F2 Generation
- Keywords:
- melon; fruit length; fruit width; fruit index; major-plus polygene; inheritance
- 文献标志码:
- A
- 摘要:
- 以果实性状差异较大的来源于美国的厚皮甜瓜ms-5和黑龙江省薄皮甜瓜HM-1为亲本，构建P1、P2、F1和F2群体，采用植物数量性状主基因-多基因混合模型对甜瓜果实长度、宽度及果形指数进行遗传分析。结果表明：果实长度受到1对加性-显性主基因模型控制；果实宽度受到2对加性-显性上位多基因遗传模型控制；果形指数受到加性-显性-上位效应多基因控制。主基因在F2代群体中遗传率果实长度为54.5%；果实宽度为61.4%和58.0%，显性效应占主要作用；果形指数主基因遗传效应为20% 和11%，受环境条件影响较大。
- Abstract:
- Two parental lines which were ms-5 from American thickness peel melon and Chinese thin peel melon HM-1 were used to cross F1 and F2 generation.Using mixed major gene plus polygene inheritance model to investigate the inheritance of fruit length，fruit width and fruit diameter.The results showed fruit length was controlled by one pair of additive-dominant major gene model，fruit width was controlled by two major gene with additive-dominance and epistatic effect，fruit index was controlled by two major additive-dominant-epistatic polygene model effect.And the habitability of major genes in F2 population were estimated as 54.5% in fruit length，61.4% and 58.0% in fruit width,and 20% and 11% in fruit index，respectively.It indicated fruit index was easily influenced by environment.
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备注/Memo
第一作者简介：陈克农（1955-），男，本科，高级实验师，研究方向为园艺学。E-mail：shengyunyan12345@163.com.基金项目：国家自然科学基金资助项目（31401892）；教育部归国留学科研资助项目；黑龙江八一农垦大学博士科研启动资助项目（2031011003）。